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Search: id:A131663
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| A131663 |
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Numbers n where either n or n+1 is divisible by the numbers from 1 to 10. |
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+0
1
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| 720, 1799, 2519, 2520, 3240, 4319, 5039, 5040, 5760, 6839, 7559, 7560, 8280, 9359, 10079, 10080, 10800, 11879, 12599, 12600, 13320, 14399, 15119, 15120, 15840, 16919, 17639, 17640, 18360, 19439, 20159, 20160, 20880, 21959, 22679, 22680
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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720 is divisible by 2, 3, 4, 5, 6, 8, 9 and 10; while 721 is divisible by 7.
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MATHEMATICA
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Select[Range[30000], Mod[ #, 8]*Mod[ # + 1, 8] == 0 && Mod[ #, 9]*Mod[ # + 1, 9] == 0 && Mod[ #, 5]*Mod[ # + 1, 5] == 0 && Mod[ #, 7]*Mod[ # + 1, 7] == 0 && Mod[ #, 8]*Mod[ # + 1, 8] == 0 && Mod[ #, 6]*Mod[ # + 1, 6] == 0 && Mod[ #, 10]*Mod[ # + 1, 10] == 0 &]
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CROSSREFS
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Sequence in context: A067892 A137493 A067808 this_sequence A090392 A000805 A112530
Adjacent sequences: A131660 A131661 A131662 this_sequence A131664 A131665 A131666
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KEYWORD
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nonn
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AUTHOR
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Tanya Khovanova (tanyakh(AT)yahoo.com), Sep 13 2007
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